/**
 * HttpRequest.java
 */
package tuanxue;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;
import java.util.List;
import java.util.Map;
import java.util.Random;

/**
 * @author maple
 *         2017年5月3日 下午5:44:03
 *         modified by :
 */
public class HttpRequest {

	public static void main(String[] args) {
		// 如果不设置，只要代理IP和代理端口正确,此项不设置也可以
		// System.getProperties().setProperty("http.proxyHost", "10.22.40.32");
		// System.getProperties().setProperty("http.proxyPort", "8080");
		// 判断代理是否设置成功
		// 发送 GET 请求
		// ?id=276
		for(int i =0;i<10000;i++){
			new Thread(new Runnable() {
				
				@Override
				public void run() {
					// TODO Auto-generated method stub
					System.out.println(sendGet("http://www.wspc.edu.cn/", null, getRandomIp()));
				}
			}).start();
			
		}
//		for (int j = 289; j > 277; j--) {
//			for (int i = 0; i < 500; i++) {
//				System.out.println(sendGet("http://outlander2047.gmmc.com.cn/voteajax.php", "id=" + j, getRandomIp()));
//			}
//		}
		// 发送 POST 请求
	}

	/**
	 * 向指定URL发送GET方法的请求
	 * 
	 * @param url
	 *            发送请求的URL
	 * @param param
	 *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
	 * @return URL 所代表远程资源的响应结果
	 */
	public static String sendGet(String url, String param, String ip) {
		String result = "";
		BufferedReader in = null;
		try {
			String urlNameString = url;
			if(param!=null){
				urlNameString = url + "?" + param;
			}	
			URL realUrl = new URL(urlNameString);
			// 打开和URL之间的连接
			URLConnection connection = realUrl.openConnection();
			// 设置通用的请求属性
			connection.setRequestProperty("accept", "*/*");
			connection.setRequestProperty("connection", "Keep-Alive");
			connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
			connection.setRequestProperty("X-Forwarded-For", ip);
			// 建立实际的连接
			connection.connect();
			// 获取所有响应头字段
			Map<String, List<String>> map = connection.getHeaderFields();
			// 遍历所有的响应头字段
			for (String key : map.keySet()) {
				System.out.println(key + "--->" + map.get(key));
			}
			// 定义 BufferedReader输入流来读取URL的响应
			in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
			String line;
			while ((line = in.readLine()) != null) {
				result += line;
			}
		} catch (Exception e) {
			System.out.println("发送GET请求出现异常！" + e);
			e.printStackTrace();
		}
		// 使用finally块来关闭输入流
		finally {
			try {
				if (in != null) {
					in.close();
				}
			} catch (Exception e2) {
				e2.printStackTrace();
			}
		}
		return result;
	}

	/**
	 * 向指定 URL 发送POST方法的请求
	 * 
	 * @param url
	 *            发送请求的 URL
	 * @param param
	 *            请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
	 * @return 所代表远程资源的响应结果
	 */
	public static String sendPost(String url, String param, String ip) {
		PrintWriter out = null;
		BufferedReader in = null;
		String result = "";
		try {
			URL realUrl = new URL(url);
			// 打开和URL之间的连接
			URLConnection conn = realUrl.openConnection();
			// 设置通用的请求属性
			conn.setRequestProperty("accept", "*/*");
			conn.setRequestProperty("connection", "Keep-Alive");
			conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
			// 发送POST请求必须设置如下两行
			conn.setDoOutput(true);
			conn.setDoInput(true);
			// 获取URLConnection对象对应的输出流
			out = new PrintWriter(conn.getOutputStream());
			// 发送请求参数
			out.print(param);
			// flush输出流的缓冲
			out.flush();
			// 定义BufferedReader输入流来读取URL的响应
			in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
			String line;
			while ((line = in.readLine()) != null) {
				result += line;
			}
		} catch (Exception e) {
			System.out.println("发送 POST 请求出现异常！" + e);
			e.printStackTrace();
		}
		// 使用finally块来关闭输出流、输入流
		finally {
			try {
				if (out != null) {
					out.close();
				}
				if (in != null) {
					in.close();
				}
			} catch (IOException ex) {
				ex.printStackTrace();
			}
		}
		return result;
	}

	public static String getRandomIp() {
		// ip范围
		int[][] range = { { 607649792, 608174079 },// 36.56.0.0-36.63.255.255
			{ 1038614528, 1039007743 },// 61.232.0.0-61.237.255.255
			{ 1783627776, 1784676351 },// 106.80.0.0-106.95.255.255
			{ 2035023872, 2035154943 },// 121.76.0.0-121.77.255.255
			{ 2078801920, 2079064063 },// 123.232.0.0-123.235.255.255
			{ -1950089216, -1948778497 },// 139.196.0.0-139.215.255.255
			{ -1425539072, -1425014785 },// 171.8.0.0-171.15.255.255
			{ -1236271104, -1235419137 },// 182.80.0.0-182.92.255.255
			{ -770113536, -768606209 },// 210.25.0.0-210.47.255.255
			{ -569376768, -564133889 }, // 222.16.0.0-222.95.255.255
		};
		Random rdint = new Random();
		int index = rdint.nextInt(10);
		String ip = num2ip(range[index][0] + new Random().nextInt(range[index][1] - range[index][0]));
		return ip;
	}

	public static String num2ip(int ip) {
		int[] b = new int[4];
		String x = "";
		b[0] = (int) ((ip >> 24) & 0xff);
		b[1] = (int) ((ip >> 16) & 0xff);
		b[2] = (int) ((ip >> 8) & 0xff);
		b[3] = (int) (ip & 0xff);
		x = Integer.toString(b[0]) + "." + Integer.toString(b[1]) + "." + Integer.toString(b[2]) + "." + Integer.toString(b[3]);
		return x;
	}
}
